alternating current (ac)
Abbreviation for dated = dd.
A surface current is a current caused by wind direction
Gee, I dunno -- direct current, District of Columbia, whatever. Depends on whether you mean AC/DC or Washington DC.
The word current is a noun and an adjective. The noun form is fluid that moves continuously in one direction. The adjective form means to be occurring at the present time.
There is no abbreviation for metric, but there are "metric symbols". Here are the SI Basic Units: We use 7 SI Basic Units. They are: Quantity, Name, and Metric Symbol length meter m mass kilogram kg time second s electric current Ampere A thermo dynamic temperature Kelvin K amount of substance mole mol luminous intensity candela CD
Polarity
It is called an alternating current
Alternating current would fit this description.
Voltage
. . . then that would be alternating current, or simply, 'AC'.
When a surface current deflects, it changes direction.
DC (direct current).
Ampere
That may refer to DC electricity - direct current. This is when the current always flows in the same direction, unlike AC which changes its direction several times per second.That may refer to DC electricity - direct current. This is when the current always flows in the same direction, unlike AC which changes its direction several times per second.That may refer to DC electricity - direct current. This is when the current always flows in the same direction, unlike AC which changes its direction several times per second.That may refer to DC electricity - direct current. This is when the current always flows in the same direction, unlike AC which changes its direction several times per second.
An AC current (alternating current) is one that changes its direction continuously - typically at 50 or 60 Hertz (cycles per second).
AC current (alternating current) like in a wall outlet
A current which changes its direction of flow again and again is known as alternating current.